(TL;DR at the end if you don't want to read this whole thing)
This puzzle is almost perfect; keyword being 'almost'.
If I can't use a puzzle a lot because I'm scared of it getting damaged in some way, how well it turns doesn't matter nearly as much and the puzzle as a whole loses a lot of value.
It turns amazingly, it's fun to solve (takes me around 4-5 hours) and the size is great.
The one single issue I have with this is that it isn't stickerless.
While there are benefits for colorblind folk, the option to buy this as a stickerless puzzle would be great; that or even a sticker pack I could buy individually would be awesome.
The stickers fall off so easily, I've had 2 fall off and many others are peeling off (after 2 solves). I've been solving this as carefully as possible on a cubing mat, this is already becoming a major issue for me. If the same sticker falls of twice, I'm going to have nothing to replace it with!
I'm going to return this puzzle to buy an Examinx because it's stickerless, the stickers are THAT much of an issue for me (hence the 3 stars, even if everything else is perfect). (The Examinx price is 5x the Teraminx price.)
TL;DR
The mechanics and turning of this puzzle is as good as it gets with puzzles this big. The issue is that this puzzle doesn't come with a stickerless variant OR have any sticker packs you can buy individually. Once the same sticker falls of and is replaced twice, there is NO way to replace the sticker without making it yourself!